中央線 新宿駅 300M
This black sign with white lettering (first picture above), saying 中央線 新宿駅 300M (Chuo Line, Shinjuku Station 300M) I like for its simplicity, clarity, unique style, and its link to the past. I suppose this type of sign used to be a standard type? In any case, it's quite rare in 2010 (soon 2011) Tokyo. Old it may be, but it's perfectly clear and useful, so I hope it stays there indefinitely.
Lyle (Hiroshi) Saxon